Comparative study of multi-element determination using inductively coupled plasma mass spectrometry, total reflection X-ray fluorescence spectrometry and neutron activation analysis

The analytical capabilities of inductively coupled plasma mass spectrometry, total reflection X-ray fluorescence spectrometry and neutron activation analysis were compared. The data originated from the parallel analyses of spinach, cabbage and domestic sludge samples, which were used in inter-laboratory tests to monitor precision and accuracy. The determined concentrations range from 40 mg g"-"1 to 20 ng g"-"1 and the analytical errors from 2 to 30%. The extensive results and the reliability of the techniques are discussed. (orig.)Also published in: Journal of Analytical Atomic Spectrometry (Sep 1994) v. 9, p. 1071-1074Available from TIB Hannover: RA 3251(94/E/63) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Comparative study of different digestion procedures using supplementary analytical methods for multielement-screening of more than 50 elements in sediments of the river Elbe

The suitability of four different digestion procedures, i.e. (i) an aqua regia digestion according to DIN 38 414-S7, (ii) a pressure digestion using HNO_3/HF in PTFE-vessels, (iii) a HNO_3/HF=HCl-pressure digestion in PTFE-vessels and (iv) a HNO_3/HF+HCl-pressure digestion using microwave induction, has been evaluated with regard to the quantitative determination of about 50 elements in environmental samples. Three sediments of the river Elbe and two standard reference materials (MESS-1 and NIST 1645) have been employed. The analytical results from the dissolved samples, obtained using inductively coupled plasma mass- and optical emission spectrometry as well as total reflection X-ray fluorescence spectrometry, have been compared with those obtained by instrumental neutron activation analysis. Only digestion procedures using HNO_3/HF with a subsequent evaporation to dryness and dissolution in HCl have led to appropriate results for a wide range of elements (more than 50 elements in total). Because of its low contamination risk and its time saving, the microwave digestion is preferred. For this digestion procedure the accordance among the different instrumental methods used is high (better than 15% deviation) in general. A few elements (16) could be determined quantitatively only by a single method. (orig.)Also published in Fresenius' Journal of Analytical Chemistry (1995) v. 353, p. 3-11Available from TIB Hannover: RA 3251(95/E/36) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Erfassung und Beurteilung der Belastung der Elbe mit Schadstoffen. Teilprojekt 2: Schwermetalle - Schwermetallspezies. Bd. 1/3 Zusammenfassende Aus- und Bewertung der Laengsprofiluntersuchungen in der Elbe. Abschlussbericht

Available from TIB Hannover: F99B331 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

Development and application of ICP-MS in Elbe river research

In order to characterize the contamination of the river Elbe and generate elemental distribution patterns, up to fifty elements and additional alkylspecies of Sn, Hg and Pb have been determined in samples of suspended matter and sediment using unductively coupled plasma (ICP) - mass spectrometry (MS). The analytical results for the elemental concentrations have been compared with, and completed by those of other techniques such as instrumental neutron activation analysis (INAA), total reflection X-ray fluorescence spectrometry (TXRF) and ICP-optical emission spectrometry (OES). Sources of contamination are identified. The survey revealed groups of elements with similar behavior and groups of characteristic regional element patterns. Isotope ratio measurements have been used to characterize different sources of lead contribution. (orig.)Special print from: Fresenius J. Anal. Chem., v. 359(1997), p. 346-351Available from TIB Hannover: RA 3251(97/E/65) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman